The Goodness of God

I don't know about you, but sometimes I get discouraged. Being a SAHM and Homeschooling mom takes a lot of giving without neccessarily getting anything in return.
This week has been hard for me. My kids argue, as all kids do, but it seems to have escalated this week. I feel like the fights are almost constant.
Tuesday, my husband left a really encouraging card for me in our bathroom, telling me how great I am and how he knows God has called me to be a SAHM and how much he appreciates me. This lifted my spirits considerably.
Then, today rolls around, Thursday. From the get go, my kids were whining and arguing with each other. You may say, "Well do something about it!" Well, I just didn't have the want to. I felt despair and discouragement weighing me down.
Then we went to Wal-mart. As we were checking out, the cashier was really in a talkative mood. She actually talked to me and the kids. (People usually ignore them) She was saying to them, "Wow, you must have a great mom." and "I bet you really love your mom." I would like to say that my kids broke into a long soliliquy about all I do for them. But they just smiled at her. Then she said,"You guys are blessed to have a mom. You need to tell her everyday how much you love and appreciate her." I knew this was a God moment. God speaking His words through this beautiful lady. I thanked her for all she said. But that wasn't the end.... She said directly to me,"Mom's do so much. They wear so many hats. They just need some mom time. They also need to know that what they do is really appreciated." Then she spoke to my kids again,"You guys are blessed to have a mom. Some people don't know what that is like." Then we left.
I could/will guess that maybe this young lady didn't have her mom around growing up or has lost her mom at some point in her life. (She looked to be in her early twenties.)
Whatever her story is, God used her to lift me up and set my eyes back on the high calling. Through Him, I can do everything. But I can't do anything without Him, because it will be a miserable failure.
"And those he predestined, he also called, those he called, he also justified, those he justified, he also glorified." Romans 8:30